Duncan e



(No Model.)

D E. GRANT. WATCH CASE PENDANT.

No. 445,172. Patented Jan. 27, 1891 17 nwmm/a- 7D. 6% BY J1wm- ATTORNEYS.

WITNESSES:

UNITED STATES PATENT OFFICE.-

DUNCAN E. GRANT, OF QUE3EG, CANADA.

WATCH-CASE PEN D;ANT.

SPECIFICATION forming part of Letters Patent No. 445,172, dated January 27, 1891. Application filed August 12, 1889. Serial No. 320,528, (No model.)

To all whom it may concern.-

Be it known that I, DUNCAN E. GRANT, of Quebec, in the Province of Quebec and D- Ininion of Canada, have invented certain new and useful Improvements in Watch-Cases, of which the following is a full, clear, and exact description.

The object of the invention is to provide certain new and usefuliinprovements in watchcases, which permit of conveniently opening the cover or covers of watches, of opening out the works of solid backed stem-winding watches, and of doing away with the mechanism at present used for altering the hands and setting the regulator of such watches.

The invention consists of a ease-ring adapted to operate the cover spring or springs.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional front view of the improvement as applied to a hunting-case. Fig. 2is a sectional side elevation of the same. Fig. is a rear view of the watch-case provided with the improvement and with the back cover opened. Fig. 4 is an enlarged sectional front View of the improvement. Fig. 5 is a transverse section of the same on the line a: so of Fig. 4. Fig. 6 is an enlarged plan view of the cover-springs. Fig. 7 is a sectional front view of a modified form of the improvement as applied to solid-back watchcases. Fig. 8 is an end elevation of the same showing the cover and works open. Fig. 9 is an enlarged sectional front view of the modiiied form shown in Fig. Fig. 10 is an onlarged side elevation of the key-cylinder. ig. 11 is an end elevation of the same, and Fig. 12 is a plan view of the springs for the cover and works. Fig. 13 is a plan view of a key-plate.

The hunting-case A (shown in Figs. 1 to 5) is provided with the usual springs B and 0, adapted to open or look in a closed position the front and rear covers D and E, respectively. On the top of the free ends of the springs B and 0 rest the pistons F and F,

respectively, mounted to slide in the stem olfset G, secured on the watch-case, and somewhat larger than the form now usually employed. Against the pistons F and F are adapted to press the cams H and ll formed on the parallel oitsets IF and ll, respectively, fastened on the ends of the ring It. The cams I1 and II stand in opposite directions, as is plainly shown in Fig. 5, and the ring II is pivoted on pivots I, held in the oifset G, and passing through the parallel offsets H and II, carrying the cams. Through the centers of the pivots I pass the screws J, engaging with their inner ends an annular recess formed in the key K, mounted in the usual manner in the offset G.

lVhen the ring H stands in a vertical positionthat is, in line with the face of the watohcase Athe pistons F and F are held in their outermost position by the springs 15 and C, which latter can now hold the covers D and E in a closed position. When the covers D and E are closed and locked in place by the said springs B and C, and the operator swings the ring H rearward, the earn 11 moves downward and presses the piston F inward, so that the spring B releases from its catch the cover D, so that the latter is thrown open by the usual spring at its hinge. The other cam H on moving the ring H in the direction described, moves upward, and consequently the piston remains in its former position.

hen the operatordesires to open the back cover E, he swings the ring 11 to the front into the position shown in Fig. 2that is, at or about at right angles to the face of the watcln ease-so that the cam ll presses the piston F inward, whereby the spring 0 releases the back cover E and the lattertlies open. During this movement the cam ll moves upward and the piston F remains in its position. hen the operator desires to close either of the covers D or E, or both, the ring ii is moved to its normal position that is, in line with the face of the watch-case. It will thus be seen that by moving the ring II either to the rear or to the front at or about an angle of ninety degrees with the plane of the watch the front or rearcover flies open. It is to be understood that when the watch is carried in the pocket, is hung up, or is laid on the table the ring H always stands in the normal position-that is, in line with the face of the watch-and the covers D and E remain closed.

In the modifications shown in Figs. 7, 8, 9, 10, 11, and 12 a solid-back case is represented. In this form the pistons F and F are dispensed with, and the key K passes through a cylinder L, containing a spring N, coiled on the key and resting at its lower end on a plate L held in an opening L of the cylinder L, and preventing the spring from being turned by the key when the watch is being wound. The key K passes loosely through an aperture in the plate L. On opposite sides of the cylinder L are arranged the lugs L and L adapted to be engaged simultaneously by the cams H and IP, which nowboth stand in the same direction.

- lVhen the cover is closed and the operator moves the ring II into a right-angular position, the cams II and 11 act on the lugs I. and L simultaneously, and press the cylinder L downward, so that the latterpresses against the ends of the springs B and C, and as the spring 13 alone locks the front cover D the latter flies open. At the same time the key K is moved downward by the cylinder L, so that the lower end of the key engages the usual winding mechanism of the watch, and when the key is now turned the watch can be wound.

When the operator desires to set the hands or to lock the cover D, the ring H is moved to its normal position, so that the operator can either close the cover D or can unlock the usual spring-catch of the works E, so as to swing the latter into the posit-ion shown in Fig. 8. The operator can then turn theknob E for setting the hands.

It is to be understood that the key K is pressed downward by the movement of the cylinder L; but in case the square end of the key K does not strike exactly on the square end of the Winding mechanism K the spring N permits the key to rise in the cylinder, which is readily noticed by the operator, who will then turn the knob of the stem untilthe key comes into proper position, when it will be forced over the square end of the winding mechanism K by the spring N, and held there by it until the cylinderis raised.

It will be seen that by means of this invention one cover or both covers of a hunting-case watch can be conveniently opened, the Works of a solid-backed stem-winding watch opened out, and the usual mechanism for altering the hands and setting the regulator of such watches conveniently dispensed with.

I am aware that it is not new to throw the setting mechanism of a watch into gear through the actuation of the bow, and that it has been proposed to open the covers of a watch by pressing upon the head of the winding-arbor after the bow has been moved to bring a sleeve into position over one or the other of two cover-springs; but I am not aware that any one has heretofore provided a watch-case with a bowpendant adapted, substantially as shown, to actuateor release the cover-locking device by simply turning the bow-pendant to one side or the other. In other words, I believe myself to be the first to provide a watch-case with a bow-pendant, which, upon being turned down to one side, will of itself actuate or release the coversprin or other locking device and permit the cover to open; and such a construction and arrangement I claim, broadly.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

' 1. In combination with a Watch-case and its lid or cover, a locking spring or catch and a pendant-bow adapted to act upon and to force back said spring or catch when moved to one side.

2. In combination with a watch-case and 7 its lid or cover, a spring or catch for locking the same closed and a bow-pendant provided with a cam, said cam being arranged to bear upon and force back the spring or catch when the pendant is turned or swung laterally.

3. In combination with a watch-case and with front and back lids or covers therefor, catches or springs, one'for each lid or cover, and a bow-pendantprovided with two cams, one arranged to bear upon and release one catch or spring when the pendant is swung to one side and the other arranged tobear upon and release the other spring or catch when the pendant is swung to the other side.

4. In a watch-case, the combination of the stem, the ring journaled at its ends therein and provided with a cam, the case-spring, and a connection between the cam and the spring, whereby when the ring is swung down its cam will depress said connection and the spring, substantially as set forth.

5. In a watch-case, the combination, with a pivoted ring carrying cams, of a cylinder operated on by the said cams, and springs in the path of and operated on by the said cylinder when it is actuated by the cams, substantially as shown and described.

6. In a watch-case, the combination, with a pivoted ring carrying cams, of a cylinder operated on by the said cams, springs movable vertically by' the said cylinder, and a stemwinding key carried by the said cylinder and movable vertically therewith, substantially as shown and described.

7. In a watclrcase, the combination, with a pivoted ring carrying cams, of a cylinder operated on by the said cams, springs moved vertically by the said cylinder, a stem-winding key carried by the said cylinder and movable vertically therewith, and a spring held in the said cylinder and pressing against the said stem-windin g key, substantially as shown and described.

8. In a watch-case, the combination, with a pivoted ring carrying cams, of a cylinder operated on by the said cams, springs moved vertically by the said cylinder, a stem-winding keyem'r'ied hythe saidcylinderand lllOV- the Watch, substantially as shown and deahle vertically therewith, a spring held in scribed.

the said cylinder and pressing" against the T L T 3 said stem-winding key, and an apertured DUAOAB GRAAT' 5 plate held in the said cylinder and on which Vitnesses:

rests the last-named spring, and which pre JOHN RITCHIE,

vents the spring from turning when Winding SAML. CLARKE. 

